Modeling of Clouds from a Single Photograph
Computer Graphics Forum (Proceedings of Pacific Graphics 2010), Vol. 29, No. 7, pp. 2083-2090
Yoshinori Dobashi, Yusuke Shinzo, Tsuyoshi Yamamoto
Hokkaido University
Abstract
In this paper, we propose a simple method for modeling clouds from a single photograph. Our method can
synthesize three types of clouds: cirrus, altocumulus, and cumulus. We use three different representations for each
type of cloud: two-dimensional texture for cirrus, implicit functions (metaballs) for altocumulus, and volume data
for cumulus. Our method initially computes the intensity and the opacity of clouds for each pixel from an input
photograph, stored as a cloud image. For cirrus, the cloud image is the output two-dimensional texture. For each
of the other two types of cloud, three-dimensional density distributions are generated by referring to the cloud
image. Since the method is very simple, the computational cost is low. Our method can generate, within several
seconds, realistic clouds that are similar to those in the photograph.
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Citation
@article{doba2010,
author = {Yoshinori Dobashi and Yusuke Shinzo and Tsuyoshi Yamamoto},
title = {Modeling of Clouds from a Single Photograph},
journal = {Computer Graphics Forum (Proceedings of Pacific Graphics 2010)},
year = {2010},
volume = {29},
number = {7},
pages = {2083-2090}
}